Is there a massive undiscovered planet on the outer reaches of the solar system? The idea has been around since before the ...

As scientists wait for the asteroid to reappear, its revised trajectory is now drawing attention to another possible target: ...

In 2015, astronomer Tabetha Boyajian and colleagues announced the discovery of unusual light fluctuations coming from a star ...

Voyager 1, launched in 1977 and traveling for nearly 50 years, has not yet traveled the distance light covers in one day.

Earth is the only place in the universe scientists known to have organics form of life inside. Now, another planet might be ...

Scientists have confirmed a potentially habitable fifth planet in the nearby L 98-59 system, revealing a diverse collection ...

Betelgeuse, one of the brightest stars in the night sky, may not be alone. And its potential companion may be responsible for ...

Comet 3I/ATLAS was first identified by the Asteroid Terrestrial-impact Last Alert System (ATLAS), a global network of four ...

Since 2020, Earth has been rotating unusually fast on its axis, leading scientists to consider whether we should correct for the shorter days.